100550105111161 has 2 divisors, whose sum is σ = 100550105111162. Its totient is φ = 100550105111160.

The previous prime is 100550105111039. The next prime is 100550105111173. The reversal of 100550105111161 is 161111501055001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99144457751161 + 1405647360000 = 9957131^2 + 1185600^2 .

It is a cyclic number.

It is not a de Polignac number, because 100550105111161 - 2⁷ = 100550105111033 is a prime.

It is a super-2 number, since 2×100550105111161² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100550105112161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50275052555580 + 50275052555581.

It is an arithmetic number, because the mean of its divisors is an integer number (50275052555581).

Almost surely, 2^{100550105111161} is an apocalyptic number.

It is an amenable number.

100550105111161 is a deficient number, since it is larger than the sum of its proper divisors (1).

100550105111161 is an equidigital number, since it uses as much as digits as its factorization.

100550105111161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 28.

Adding to 100550105111161 its reverse (161111501055001), we get a palindrome (261661606166162).

The spelling of 100550105111161 in words is "one hundred trillion, five hundred fifty billion, one hundred five million, one hundred eleven thousand, one hundred sixty-one".